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A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
Published on: May 19, 2023
Clinical management of solitary pulmonary micronodule: a pilot study
Roberto Crisci1, Duilio Divisi
1Department of Thoracic Surgery, University of L'Aquila, G. Mazzini Hospital, Teramo, Italia.
Background:
Solitary pulmonary micronodules (SPMN) characteristically have a diameter of 0.1-0.5cm.
Objective:
The aim of this prospective study is to evaluate the surgical approach to SPMN in order to establish the most appropriate treatment.
Methods:
Between January 2007 and June 2011, 146 SPMN patients (94 males and 52 females) were prospectively evaluated. Patients were divided into two groups based on history of malignancy (Group A, 59 patients) and generic risk factors for lung cancer (Group B, 87 patients). After gathering patient information, we proposed surgery or thin-section computed tomography (TSCT) follow-up to both Groups.
Results:
Preference for surgery versus TSCT follow-up was 90% versus 10% in Group A and 78% versus 22% in Group B, respectively. In Group A, we discovered 46 metastases from previous cancer (78%), 8 primary lung cancers (14%) and 5 benign lesions (8%). In Group B, we found 5 metastases (6%), 13 non-small-cell lung cancer (15%) and 69 benign lesions (79%). Statistical analysis revealed a high positive predictive value (PPV = 0.9) between total surgical patients versus TSCT follow-up patients.
Conclusions:
The indication for surgery in solitary pulmonary micronodules is aimed at establishing early diagnosis and curing malignant disease. Our study indicates that in patients with previous cancer, surgery is essential. In patients with generic risk for lung cancer, surgical indications should be contemplated more carefully, even though the pulmonary malignancy rate of 21% in Group B seems to indicate the advisability of surgery.
Insights
Surgery is essential for solitary pulmonary micronodules (SPMN) in patients with a prior cancer history. For those with general lung cancer risk, careful consideration of surgical intervention is advised due to a 21% malignancy rate.
Area of Science:
- Thoracic Surgery
- Pulmonary Medicine
- Diagnostic Imaging
Background:
- Solitary pulmonary micronodules (SPMN) are small lung lesions (0.1-0.5cm).
- Distinguishing benign from malignant SPMN is crucial for patient management.
Purpose of the Study:
- To evaluate the surgical approach for solitary pulmonary micronodules.
- To determine the most appropriate treatment strategy for SPMN.
Main Methods:
- Prospective evaluation of 146 SPMN patients (2007-2011).
- Patients grouped by prior malignancy (Group A) or general lung cancer risk (Group B).
- Treatment options included surgery or thin-section computed tomography (TSCT) follow-up.
Main Results:
- Group A (prior cancer): 90% preferred surgery; 78% of resected lesions were metastases.
- Group B (general risk): 78% preferred surgery; 15% of resected lesions were primary lung cancers, 6% metastases.
- High positive predictive value (0.9) for surgery in diagnosing malignancy.
Conclusions:
- Surgery is vital for early diagnosis and cure of malignant SPMN, especially in patients with a history of cancer.
- Surgical indications for SPMN in patients with general risk factors require careful consideration.
- A 21% malignancy rate in Group B suggests surgery may be advisable.
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